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Real Estate and Accumulated Depreciation (Details) (USD $)
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Initial Cost      
Land $ 2,119,243,000    
Buildings & Improvements 4,982,427,000    
Improvements 10,361,000    
Total Cost      
Land 2,201,732,000    
Buildings & Improvements 6,068,374,000    
Total 8,270,106,000    
Accumulated Depreciation 1,551,043,000    
Total cost of real estate net of accumulated depreciation 6,719,063,000    
Encumbrances 1,292,095,000    
The changes in Total Real Estate Assets, excluding real estate held for sale, for the three years ended December 31, 2011 are as follows:      
Balance, ending of year 8,266,839,000 8,411,239,000 8,812,484,000
Balance, beginning of year 8,411,239,000 8,812,484,000 9,109,566,000
Acquisitions and transfers from joint ventures 260,161,000   130,567,000
Developments, improvements and expansions 104,245,000 174,315,000 224,850,000
Changes in land under development and construction in progress (15,153,000) (2,409,000) (23,614,000)
Real estate held for sale (3,267,000)   (11,235,000)
Adjustment of property carrying values (125,844,000) (171,900,000) (154,718,000)
Sales, transfers to joint ventures and retirements (364,542,000) (401,251,000) (462,932,000)
The changes in Accumulated Depreciation and Amortization, excluding real estate held for sale, for the three years ended December 31, 2010 are as follows:      
Balance, Beginning of year 1,452,112,000 1,332,534,000 1,208,903,000
Depreciation for year 230,332,000 227,304,000 233,967,000
Real estate held for sale (977,000)   (782,000)
Sales and retirements (131,401,000) (107,726,000) (109,554,000)
Balance, Ending of year 1,550,066,000 1,452,112,000 1,332,534,000
Real estate and accumulated depreciation (Textual) [Abstract]      
Real estate land under development 356,500,000    
Real estate construction in progress 225,100,000    
The amount of tax-exempt certificates excluded from encumbrances 17,000,000    
Fair market value of debt adjustments excluded from encumbrances 13,300,000    
Tax cost basis of assets 8,500,000,000 8,600,000,000 9,000,000,000
Bayamon, PR [Member]
      
Initial Cost      
Land 132,074,000    
Buildings & Improvements 152,441,000    
Improvements 0    
Total Cost      
Land 132,759,000    
Buildings & Improvements 158,169,000    
Total 290,928,000    
Accumulated Depreciation 34,714,000    
Total cost of real estate net of accumulated depreciation 256,214,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
Bayamon, PR [Member]
      
Initial Cost      
Land 91,645,000    
Buildings & Improvements 98,007,000    
Improvements 0    
Total Cost      
Land 92,027,000    
Buildings & Improvements 106,320,000    
Total 198,347,000    
Accumulated Depreciation 23,039,000    
Total cost of real estate net of accumulated depreciation 175,308,000    
Encumbrances 109,500,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
Bayamon, PR [Member]
      
Initial Cost      
Land 4,294,000    
Buildings & Improvements 11,987,000    
Improvements 0    
Total Cost      
Land 4,584,000    
Buildings & Improvements 19,191,000    
Total 23,775,000    
Accumulated Depreciation 3,011,000    
Total cost of real estate net of accumulated depreciation 20,764,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
Carolina, PR [Member]
      
Initial Cost      
Land 28,522,000    
Buildings & Improvements 76,947,000    
Improvements 0    
Total Cost      
Land 28,601,000    
Buildings & Improvements 80,479,000    
Total 109,080,000    
Accumulated Depreciation 17,500,000    
Total cost of real estate net of accumulated depreciation 91,580,000    
Encumbrances 57,500,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
Humacao, PR [Member]
      
Initial Cost      
Land 16,386,000    
Buildings & Improvements 74,059,000    
Improvements 0    
Total Cost      
Land 16,386,000    
Buildings & Improvements 81,569,000    
Total 97,955,000    
Accumulated Depreciation 18,648,000    
Total cost of real estate net of accumulated depreciation 79,307,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
Isabela, PR [Member]
      
Initial Cost      
Land 8,175,000    
Buildings & Improvements 41,094,000    
Improvements 0    
Total Cost      
Land 8,236,000    
Buildings & Improvements 42,858,000    
Total 51,094,000    
Accumulated Depreciation 9,674,000    
Total cost of real estate net of accumulated depreciation 41,420,000    
Encumbrances 22,936,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
San German, PR [Member]
      
Initial Cost      
Land 3,215,000    
Buildings & Improvements 24,000    
Improvements 0    
Total Cost      
Land 3,215,000    
Buildings & Improvements 41,000    
Total 3,256,000    
Accumulated Depreciation 27,000    
Total cost of real estate net of accumulated depreciation 3,229,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
San German, PR [Member]
      
Initial Cost      
Land 6,470,000    
Buildings & Improvements 20,751,000    
Improvements 0    
Total Cost      
Land 6,470,000    
Buildings & Improvements 21,163,000    
Total 27,633,000    
Accumulated Depreciation 4,830,000    
Total cost of real estate net of accumulated depreciation 22,803,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
Cayey, PR [Member]
      
Initial Cost      
Land 18,226,000    
Buildings & Improvements 25,101,000    
Improvements 0    
Total Cost      
Land 18,226,000    
Buildings & Improvements 25,101,000    
Total 43,327,000    
Accumulated Depreciation 5,776,000    
Total cost of real estate net of accumulated depreciation 37,551,000    
Encumbrances 21,715,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
San Juan, PR [Member]
      
Initial Cost      
Land 10,338,000    
Buildings & Improvements 23,285,000    
Improvements 0    
Total Cost      
Land 10,338,000    
Buildings & Improvements 29,752,000    
Total 40,090,000    
Accumulated Depreciation 6,011,000    
Total cost of real estate net of accumulated depreciation 34,079,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
Arecibo, PR [Member]
      
Initial Cost      
Land 7,965,000    
Buildings & Improvements 29,898,000    
Improvements 0    
Total Cost      
Land 8,094,000    
Buildings & Improvements 31,215,000    
Total 39,309,000    
Accumulated Depreciation 7,072,000    
Total cost of real estate net of accumulated depreciation 32,237,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
Hatillo, PR [Member]
      
Initial Cost      
Land 101,219,000    
Buildings & Improvements 105,465,000    
Improvements 0    
Total Cost      
Land 101,219,000    
Buildings & Improvements 120,503,000    
Total 221,722,000    
Accumulated Depreciation 25,599,000    
Total cost of real estate net of accumulated depreciation 196,123,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
Vega Baja, PR [Member]
      
Initial Cost      
Land 7,076,000    
Buildings & Improvements 18,684,000    
Improvements 0    
Total Cost      
Land 7,076,000    
Buildings & Improvements 18,789,000    
Total 25,865,000    
Accumulated Depreciation 4,266,000    
Total cost of real estate net of accumulated depreciation 21,599,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
Guayama, PR [Member]
      
Initial Cost      
Land 1,960,000    
Buildings & Improvements 18,721,000    
Improvements 0    
Total Cost      
Land 1,960,000    
Buildings & Improvements 19,473,000    
Total 21,433,000    
Accumulated Depreciation 4,305,000    
Total cost of real estate net of accumulated depreciation 17,128,000    
Encumbrances 12,201,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
Fajardo, PR [Member]
      
Initial Cost      
Land 4,376,000    
Buildings & Improvements 41,199,000    
Improvements 0    
Total Cost      
Land 4,376,000    
Buildings & Improvements 41,592,000    
Total 45,968,000    
Accumulated Depreciation 9,318,000    
Total cost of real estate net of accumulated depreciation 36,650,000    
Encumbrances 26,108,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (A)    
Brandon, FL [Member]
      
Initial Cost      
Land 0    
Buildings & Improvements 4,111,000    
Improvements 0    
Total Cost      
Land 0    
Buildings & Improvements 6,343,000    
Total 6,343,000    
Accumulated Depreciation 5,130,000    
Total cost of real estate net of accumulated depreciation 1,213,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 30.0    
Date of Construction (C) Acquisition (A) 1972 (C)    
Brandon, FL [Member]
      
Initial Cost      
Land 4,775,000    
Buildings & Improvements 13,117,000    
Improvements 0    
Total Cost      
Land 4,775,000    
Buildings & Improvements 14,049,000    
Total 18,824,000    
Accumulated Depreciation 901,000    
Total cost of real estate net of accumulated depreciation 17,923,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2009 (A)    
Stow, OH [Member]
      
Initial Cost      
Land 993,000    
Buildings & Improvements 9,028,000    
Improvements 0    
Total Cost      
Land 993,000    
Buildings & Improvements 34,997,000    
Total 35,990,000    
Accumulated Depreciation 13,729,000    
Total cost of real estate net of accumulated depreciation 22,261,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 30.0    
Date of Construction (C) Acquisition (A) 1969 (C)    
Westlake, OH [Member]
      
Initial Cost      
Land 424,000    
Buildings & Improvements 3,803,000    
Improvements 203,000    
Total Cost      
Land 424,000    
Buildings & Improvements 10,339,000    
Total 10,763,000    
Accumulated Depreciation 6,221,000    
Total cost of real estate net of accumulated depreciation 4,542,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 30.0    
Date of Construction (C) Acquisition (A) 1974 (C)    
E. Norrition, PA [Member]
      
Initial Cost      
Land 70,000    
Buildings & Improvements 4,698,000    
Improvements 233,000    
Total Cost      
Land 70,000    
Buildings & Improvements 8,826,000    
Total 8,896,000    
Accumulated Depreciation 6,695,000    
Total cost of real estate net of accumulated depreciation 2,201,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 30.0    
Date of Construction (C) Acquisition (A) 1975 (C)    
Palm Harbor, FL [Member]
      
Initial Cost      
Land 1,137,000    
Buildings & Improvements 4,089,000    
Improvements 0    
Total Cost      
Land 1,137,000    
Buildings & Improvements 4,361,000    
Total 5,498,000    
Accumulated Depreciation 2,278,000    
Total cost of real estate net of accumulated depreciation 3,220,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1995 (A)    
Homestead,FL [Member]
      
Initial Cost      
Land 23,390,000    
Buildings & Improvements 59,639,000    
Improvements 0    
Total Cost      
Land 23,390,000    
Buildings & Improvements 59,639,000    
Total 83,029,000    
Accumulated Depreciation 3,781,000    
Total cost of real estate net of accumulated depreciation 79,248,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2008 (C)    
Tarpon Springs, FL [Member]
      
Initial Cost      
Land 146,000    
Buildings & Improvements 7,382,000    
Improvements 81,000    
Total Cost      
Land 146,000    
Buildings & Improvements 9,165,000    
Total 9,311,000    
Accumulated Depreciation 6,541,000    
Total cost of real estate net of accumulated depreciation 2,770,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 30    
Date of Construction (C) Acquisition (A) 1974 (C)    
McHenry, IL [Member]
      
Initial Cost      
Land 963,000    
Buildings & Improvements 3,949,000    
Improvements 0    
Total Cost      
Land 11,449,000    
Buildings & Improvements 45,671,000    
Total 57,120,000    
Accumulated Depreciation 5,980,000    
Total cost of real estate net of accumulated depreciation 51,140,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2006 (C)    
McHenry, IL [Member]
      
Initial Cost      
Land 332,000    
Buildings & Improvements 1,302,000    
Improvements 0    
Total Cost      
Land 2,322,000    
Buildings & Improvements 9,225,000    
Total 11,547,000    
Accumulated Depreciation 886,000    
Total cost of real estate net of accumulated depreciation 10,661,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2006 (C)    
Miami, FL [Member]
      
Initial Cost      
Land 11,626,000    
Buildings & Improvements 30,457,000    
Improvements 0    
Total Cost      
Land 26,743,000    
Buildings & Improvements 106,979,000    
Total 133,722,000    
Accumulated Depreciation 13,916,000    
Total cost of real estate net of accumulated depreciation 119,806,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2006 (C)    
San Antonio, TX [Member]
      
Initial Cost      
Land 2,976,000    
Buildings & Improvements 21,033,000    
Improvements 0    
Total Cost      
Land 2,976,000    
Buildings & Improvements 28,917,000    
Total 31,893,000    
Accumulated Depreciation 3,447,000    
Total cost of real estate net of accumulated depreciation 28,446,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (C)    
San Antonio, TX [Member]
      
Initial Cost      
Land 3,475,000    
Buildings & Improvements 37,327,000    
Improvements 0    
Total Cost      
Land 3,537,000    
Buildings & Improvements 39,907,000    
Total 43,444,000    
Accumulated Depreciation 11,774,000    
Total cost of real estate net of accumulated depreciation 31,670,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2002 (A)    
San Antonio, TX [Member]
      
Initial Cost      
Land 1,014,000    
Buildings & Improvements 7,371,000    
Improvements 0    
Total Cost      
Land 1,014,000    
Buildings & Improvements 7,371,000    
Total 8,385,000    
Accumulated Depreciation 1,004,000    
Total cost of real estate net of accumulated depreciation 7,381,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (C)    
San Antonio, TX [Member]
      
Initial Cost      
Land 1,613,000    
Buildings & Improvements 10,791,000    
Improvements 0    
Total Cost      
Land 6,168,000    
Buildings & Improvements 69,505,000    
Total 75,673,000    
Accumulated Depreciation 6,888,000    
Total cost of real estate net of accumulated depreciation 68,785,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (C)    
San Antonio, TX [Member]
      
Initial Cost      
Land 2,381,000    
Buildings & Improvements 6,487,000    
Improvements 0    
Total Cost      
Land 2,381,000    
Buildings & Improvements 6,487,000    
Total 8,868,000    
Accumulated Depreciation 4,109,000    
Total cost of real estate net of accumulated depreciation 4,759,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Starkville, MS [Member]
      
Initial Cost      
Land 703,000    
Buildings & Improvements 6,921,000    
Improvements 0    
Total Cost      
Land 703,000    
Buildings & Improvements 6,921,000    
Total 7,624,000    
Accumulated Depreciation 3,342,000    
Total cost of real estate net of accumulated depreciation 4,282,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1994 (A)    
Gulfport, MS [Member]
      
Initial Cost      
Land 0    
Buildings & Improvements 36,370,000    
Improvements 0    
Total Cost      
Land 0    
Buildings & Improvements 51,500,000    
Total 51,500,000    
Accumulated Depreciation 15,336,000    
Total cost of real estate net of accumulated depreciation 36,164,000    
Encumbrances 24,429,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Tupelo, MS [Member]
      
Initial Cost      
Land 2,213,000    
Buildings & Improvements 14,979,000    
Improvements 0    
Total Cost      
Land 2,213,000    
Buildings & Improvements 18,849,000    
Total 21,062,000    
Accumulated Depreciation 9,213,000    
Total cost of real estate net of accumulated depreciation 11,849,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1994 (A)    
Jacksonville, FL [Member]
      
Initial Cost      
Land 2,714,000    
Buildings & Improvements 9,425,000    
Improvements 0    
Total Cost      
Land 2,714,000    
Buildings & Improvements 9,820,000    
Total 12,534,000    
Accumulated Depreciation 5,470,000    
Total cost of real estate net of accumulated depreciation 7,064,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1995 (A)    
Long Beach, CA [Member]
      
Initial Cost      
Land 0    
Buildings & Improvements 111,512,000    
Improvements 0    
Total Cost      
Land 0    
Buildings & Improvements 144,060,000    
Total 144,060,000    
Accumulated Depreciation 35,906,000    
Total cost of real estate net of accumulated depreciation 108,154,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2005 (C)    
Brunswick, MA [Member]
      
Initial Cost      
Land 3,796,000    
Buildings & Improvements 15,459,000    
Improvements 0    
Total Cost      
Land 3,796,000    
Buildings & Improvements 20,308,000    
Total 24,104,000    
Accumulated Depreciation 8,911,000    
Total cost of real estate net of accumulated depreciation 15,193,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1973 (C)    
Oceanside, CA [Member]
      
Initial Cost      
Land 0    
Buildings & Improvements 10,643,000    
Improvements 0    
Total Cost      
Land 0    
Buildings & Improvements 14,352,000    
Total 14,352,000    
Accumulated Depreciation 4,943,000    
Total cost of real estate net of accumulated depreciation 9,409,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2000 (C)    
Reno, NV [Member]
      
Initial Cost      
Land 0    
Buildings & Improvements 366,000    
Improvements 0    
Total Cost      
Land 1,132,000    
Buildings & Improvements 4,696,000    
Total 5,828,000    
Accumulated Depreciation 1,070,000    
Total cost of real estate net of accumulated depreciation 4,758,000    
Encumbrances 2,893,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2000 (C)    
Everett, MA [Member]
      
Initial Cost      
Land 9,311,000    
Buildings & Improvements 44,647,000    
Improvements 0    
Total Cost      
Land 9,462,000    
Buildings & Improvements 51,341,000    
Total 60,803,000    
Accumulated Depreciation 16,764,000    
Total cost of real estate net of accumulated depreciation 44,039,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2001 (C)    
Pasadena, CA [Member]
      
Initial Cost      
Land 46,957,000    
Buildings & Improvements 101,475,000    
Improvements 2,053,000    
Total Cost      
Land 46,957,000    
Buildings & Improvements 105,943,000    
Total 152,900,000    
Accumulated Depreciation 21,388,000    
Total cost of real estate net of accumulated depreciation 131,512,000    
Encumbrances 79,100,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Salisbury, MD [Member]
      
Initial Cost      
Land 2,070,000    
Buildings & Improvements 12,495,000    
Improvements 278,000    
Total Cost      
Land 2,071,000    
Buildings & Improvements 13,057,000    
Total 15,128,000    
Accumulated Depreciation 4,505,000    
Total cost of real estate net of accumulated depreciation 10,623,000    
Encumbrances 8,669,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1999 (C)    
Atlanta, GA [Member]
      
Initial Cost      
Land 475,000    
Buildings & Improvements 9,374,000    
Improvements 0    
Total Cost      
Land 475,000    
Buildings & Improvements 10,076,000    
Total 10,551,000    
Accumulated Depreciation 5,514,000    
Total cost of real estate net of accumulated depreciation 5,037,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1994 (A)    
Atlanta, GA [Member]
      
Initial Cost      
Land 14,078,000    
Buildings & Improvements 41,050,000    
Improvements 0    
Total Cost      
Land 14,078,000    
Buildings & Improvements 41,050,000    
Total 55,128,000    
Accumulated Depreciation 2,636,000    
Total cost of real estate net of accumulated depreciation 52,492,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2009 (A)    
Atlanta, GA [Member]
      
Initial Cost      
Land 11,120,000    
Buildings & Improvements 31,341,000    
Improvements 0    
Total Cost      
Land 11,120,000    
Buildings & Improvements 31,662,000    
Total 42,782,000    
Accumulated Depreciation 5,004,000    
Total cost of real estate net of accumulated depreciation 37,778,000    
Encumbrances 12,023,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Apex, NC [Member]
      
Initial Cost      
Land 9,576,000    
Buildings & Improvements 43,619,000    
Improvements 0    
Total Cost      
Land 10,521,000    
Buildings & Improvements 54,540,000    
Total 65,061,000    
Accumulated Depreciation 8,649,000    
Total cost of real estate net of accumulated depreciation 56,412,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2006 (C)    
Erie, PA [Member]
      
Initial Cost      
Land 6,373,000    
Buildings & Improvements 19,201,000    
Improvements 0    
Total Cost      
Land 6,373,000    
Buildings & Improvements 47,186,000    
Total 53,559,000    
Accumulated Depreciation 21,647,000    
Total cost of real estate net of accumulated depreciation 31,912,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1995 (C)    
Erie, PA [Member]
      
Initial Cost      
Land 0    
Buildings & Improvements 2,564,000    
Improvements 13,000    
Total Cost      
Land 723,000    
Buildings & Improvements 3,842,000    
Total 4,565,000    
Accumulated Depreciation 3,322,000    
Total cost of real estate net of accumulated depreciation 1,243,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 30.0    
Date of Construction (C) Acquisition (A) 1973 (C)    
Erie, PA [Member]
      
Initial Cost      
Land 958,000    
Buildings & Improvements 2,206,000    
Improvements 0    
Total Cost      
Land 958,000    
Buildings & Improvements 2,206,000    
Total 3,164,000    
Accumulated Depreciation 339,000    
Total cost of real estate net of accumulated depreciation 2,825,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Erie, PA [Member]
      
Initial Cost      
Land 1,525,000    
Buildings & Improvements 2,399,000    
Improvements 0    
Total Cost      
Land 1,525,000    
Buildings & Improvements 2,399,000    
Total 3,924,000    
Accumulated Depreciation 368,000    
Total cost of real estate net of accumulated depreciation 3,556,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Erie, PA [Member]
      
Initial Cost      
Land 0    
Buildings & Improvements 1,486,000    
Improvements 0    
Total Cost      
Land 0    
Buildings & Improvements 1,486,000    
Total 1,486,000    
Accumulated Depreciation 237,000    
Total cost of real estate net of accumulated depreciation 1,249,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Erie, PA [Member]
      
Initial Cost      
Land 1,578,000    
Buildings & Improvements 2,703,000    
Improvements 0    
Total Cost      
Land 1,578,000    
Buildings & Improvements 2,703,000    
Total 4,281,000    
Accumulated Depreciation 415,000    
Total cost of real estate net of accumulated depreciation 3,866,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Erie, PA [Member]
      
Initial Cost      
Land 1,641,000    
Buildings & Improvements 2,015,000    
Improvements 0    
Total Cost      
Land 1,641,000    
Buildings & Improvements 2,015,000    
Total 3,656,000    
Accumulated Depreciation 319,000    
Total cost of real estate net of accumulated depreciation 3,337,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
San Francisco, CA [Member]
      
Initial Cost      
Land 10,464,000    
Buildings & Improvements 25,730,000    
Improvements 0    
Total Cost      
Land 10,464,000    
Buildings & Improvements 25,730,000    
Total 36,194,000    
Accumulated Depreciation 5,926,000    
Total cost of real estate net of accumulated depreciation 30,268,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2002 (A)    
Chillicothe, OH [Member]
      
Initial Cost      
Land 43,000    
Buildings & Improvements 2,549,000    
Improvements 2,000    
Total Cost      
Land 1,170,000    
Buildings & Improvements 4,366,000    
Total 5,536,000    
Accumulated Depreciation 2,253,000    
Total cost of real estate net of accumulated depreciation 3,283,000    
Encumbrances 4,263,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1974 (C)    
Phoenix, AZ [Member]
      
Initial Cost      
Land 18,701,000    
Buildings & Improvements 18,811,000    
Improvements 118,000    
Total Cost      
Land 18,701,000    
Buildings & Improvements 19,548,000    
Total 38,249,000    
Accumulated Depreciation 3,582,000    
Total cost of real estate net of accumulated depreciation 34,667,000    
Encumbrances 17,483,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1999 (A)    
Phoenix, AZ [Member]
      
Initial Cost      
Land 15,352,000    
Buildings & Improvements 22,813,000    
Improvements 1,601,000    
Total Cost      
Land 15,352,000    
Buildings & Improvements 26,312,000    
Total 41,664,000    
Accumulated Depreciation 11,272,000    
Total cost of real estate net of accumulated depreciation 30,392,000    
Encumbrances 30,000,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2000 (C)    
Macedonia, OH [Member]
      
Initial Cost      
Land 11,582,000    
Buildings & Improvements 34,323,000    
Improvements 0    
Total Cost      
Land 11,582,000    
Buildings & Improvements 34,323,000    
Total 45,905,000    
Accumulated Depreciation 3,758,000    
Total cost of real estate net of accumulated depreciation 42,147,000    
Encumbrances 20,676,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1994 (C)    
Huber Hts, OH [Member]
      
Initial Cost      
Land 757,000    
Buildings & Improvements 14,469,000    
Improvements 0    
Total Cost      
Land 757,000    
Buildings & Improvements 25,273,000    
Total 26,030,000    
Accumulated Depreciation 11,363,000    
Total cost of real estate net of accumulated depreciation 14,667,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1993 (A)    
Boardman, OH [Member]
      
Initial Cost      
Land 8,152,000    
Buildings & Improvements 27,983,000    
Improvements 0    
Total Cost      
Land 8,152,000    
Buildings & Improvements 28,483,000    
Total 36,635,000    
Accumulated Depreciation 12,884,000    
Total cost of real estate net of accumulated depreciation 23,751,000    
Encumbrances 25,717,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1997 (A)    
Solon, OH [Member]
      
Initial Cost      
Land 6,220,000    
Buildings & Improvements 7,454,000    
Improvements 0    
Total Cost      
Land 6,220,000    
Buildings & Improvements 21,652,000    
Total 27,872,000    
Accumulated Depreciation 8,636,000    
Total cost of real estate net of accumulated depreciation 19,236,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (C)    
Cincinnati, OH [Member]
      
Initial Cost      
Land 2,399,000    
Buildings & Improvements 11,238,000    
Improvements 172,000    
Total Cost      
Land 2,399,000    
Buildings & Improvements 13,902,000    
Total 16,301,000    
Accumulated Depreciation 8,403,000    
Total cost of real estate net of accumulated depreciation 7,898,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1993 (A)    
Cincinnati, OH [Member]
      
Initial Cost      
Land 2,805,000    
Buildings & Improvements 5,028,000    
Improvements 0    
Total Cost      
Land 2,805,000    
Buildings & Improvements 5,028,000    
Total 7,833,000    
Accumulated Depreciation 799,000    
Total cost of real estate net of accumulated depreciation 7,034,000    
Encumbrances 2,586,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Bedford, IN [Member]
      
Initial Cost      
Land 706,000    
Buildings & Improvements 8,425,000    
Improvements 6,000    
Total Cost      
Land 1,067,000    
Buildings & Improvements 10,581,000    
Total 11,648,000    
Accumulated Depreciation 5,714,000    
Total cost of real estate net of accumulated depreciation 5,934,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1993 (A)    
Sunset Hills, MO [Member]
      
Initial Cost      
Land 12,791,000    
Buildings & Improvements 38,404,000    
Improvements 0    
Total Cost      
Land 13,403,000    
Buildings & Improvements 44,930,000    
Total 58,333,000    
Accumulated Depreciation 20,300,000    
Total cost of real estate net of accumulated depreciation 38,033,000    
Encumbrances 27,781,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Brentwood, MO [Member]
      
Initial Cost      
Land 10,018,000    
Buildings & Improvements 32,053,000    
Improvements 0    
Total Cost      
Land 10,018,000    
Buildings & Improvements 32,625,000    
Total 42,643,000    
Accumulated Depreciation 14,095,000    
Total cost of real estate net of accumulated depreciation 28,548,000    
Encumbrances 32,640,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Cedar Rapids, IA [Member]
      
Initial Cost      
Land 4,219,000    
Buildings & Improvements 12,697,000    
Improvements 0    
Total Cost      
Land 4,219,000    
Buildings & Improvements 14,035,000    
Total 18,254,000    
Accumulated Depreciation 6,118,000    
Total cost of real estate net of accumulated depreciation 12,136,000    
Encumbrances 7,096,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Des Peres, MO [Member]
      
Initial Cost      
Land 2,775,000    
Buildings & Improvements 8,370,000    
Improvements 0    
Total Cost      
Land 2,775,000    
Buildings & Improvements 10,289,000    
Total 13,064,000    
Accumulated Depreciation 4,784,000    
Total cost of real estate net of accumulated depreciation 8,280,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Springfield, MO [Member]
      
Initial Cost      
Land 0    
Buildings & Improvements 2,048,000    
Improvements 0    
Total Cost      
Land 0    
Buildings & Improvements 2,518,000    
Total 2,518,000    
Accumulated Depreciation 975,000    
Total cost of real estate net of accumulated depreciation 1,543,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
St. Louis, MO [Member]
      
Initial Cost      
Land 4,159,000    
Buildings & Improvements 3,818,000    
Improvements 0    
Total Cost      
Land 6,051,000    
Buildings & Improvements 7,824,000    
Total 13,875,000    
Accumulated Depreciation 2,107,000    
Total cost of real estate net of accumulated depreciation 11,768,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (C)    
Aurora, OH [Member]
      
Initial Cost      
Land 832,000    
Buildings & Improvements 7,560,000    
Improvements 0    
Total Cost      
Land 1,592,000    
Buildings & Improvements 13,631,000    
Total 15,223,000    
Accumulated Depreciation 5,953,000    
Total cost of real estate net of accumulated depreciation 9,270,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1995 (C)    
Nampa, ID [Member]
      
Initial Cost      
Land 1,395,000    
Buildings & Improvements 8,563,000    
Improvements 0    
Total Cost      
Land 9,609,000    
Buildings & Improvements 91,593,000    
Total 101,202,000    
Accumulated Depreciation 5,463,000    
Total cost of real estate net of accumulated depreciation 95,739,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Idaho Falls, ID [Member]
      
Initial Cost      
Land 1,302,000    
Buildings & Improvements 5,703,000    
Improvements 0    
Total Cost      
Land 1,418,000    
Buildings & Improvements 6,455,000    
Total 7,873,000    
Accumulated Depreciation 3,191,000    
Total cost of real estate net of accumulated depreciation 4,682,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Mount Vernon, IL [Member]
      
Initial Cost      
Land 1,789,000    
Buildings & Improvements 9,399,000    
Improvements 111,000    
Total Cost      
Land 1,789,000    
Buildings & Improvements 15,960,000    
Total 17,749,000    
Accumulated Depreciation 8,149,000    
Total cost of real estate net of accumulated depreciation 9,600,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1993 (A)    
Fenton, MO [Member]
      
Initial Cost      
Land 414,000    
Buildings & Improvements 4,244,000    
Improvements 476,000    
Total Cost      
Land 430,000    
Buildings & Improvements 7,259,000    
Total 7,689,000    
Accumulated Depreciation 5,511,000    
Total cost of real estate net of accumulated depreciation 2,178,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 30.0    
Date of Construction (C) Acquisition (A) 1983 (A)    
Simpsonville, SC [Member]
      
Initial Cost      
Land 417,000    
Buildings & Improvements 6,563,000    
Improvements 0    
Total Cost      
Land 417,000    
Buildings & Improvements 6,752,000    
Total 7,169,000    
Accumulated Depreciation 3,886,000    
Total cost of real estate net of accumulated depreciation 3,283,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1994 (A)    
Camden, SC [Member]
      
Initial Cost      
Land 627,000    
Buildings & Improvements 7,519,000    
Improvements 7,000    
Total Cost      
Land 1,021,000    
Buildings & Improvements 11,576,000    
Total 12,597,000    
Accumulated Depreciation 5,934,000    
Total cost of real estate net of accumulated depreciation 6,663,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1993 (A)    
N. Charleston, SC [Member]
      
Initial Cost      
Land 911,000    
Buildings & Improvements 11,346,000    
Improvements 0    
Total Cost      
Land 1,081,000    
Buildings & Improvements 16,858,000    
Total 17,939,000    
Accumulated Depreciation 9,789,000    
Total cost of real estate net of accumulated depreciation 8,150,000    
Encumbrances 10,873,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1993 (A)    
N. Charleston, SC [Member]
      
Initial Cost      
Land 5,146,000    
Buildings & Improvements 5,990,000    
Improvements 0    
Total Cost      
Land 5,146,000    
Buildings & Improvements 9,889,000    
Total 15,035,000    
Accumulated Depreciation 2,365,000    
Total cost of real estate net of accumulated depreciation 12,670,000    
Encumbrances 9,243,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Mt. Pleasant, SC [Member]
      
Initial Cost      
Land 2,430,000    
Buildings & Improvements 10,470,000    
Improvements 0    
Total Cost      
Land 2,430,000    
Buildings & Improvements 19,814,000    
Total 22,244,000    
Accumulated Depreciation 8,561,000    
Total cost of real estate net of accumulated depreciation 13,683,000    
Encumbrances 11,903,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1995 (A)    
Mt Pleasant, MI [Member]
      
Initial Cost      
Land 767,000    
Buildings & Improvements 7,769,000    
Improvements 20,000    
Total Cost      
Land 1,142,000    
Buildings & Improvements 14,885,000    
Total 16,027,000    
Accumulated Depreciation 7,766,000    
Total cost of real estate net of accumulated depreciation 8,261,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1993 (A)    
Sault St. Marie, MI [Member]
      
Initial Cost      
Land 1,826,000    
Buildings & Improvements 13,710,000    
Improvements 0    
Total Cost      
Land 1,826,000    
Buildings & Improvements 15,639,000    
Total 17,465,000    
Accumulated Depreciation 8,329,000    
Total cost of real estate net of accumulated depreciation 9,136,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1994 (A)    
Cheboygan, MI [Member]
      
Initial Cost      
Land 127,000    
Buildings & Improvements 3,612,000    
Improvements 0    
Total Cost      
Land 127,000    
Buildings & Improvements 4,139,000    
Total 4,266,000    
Accumulated Depreciation 2,449,000    
Total cost of real estate net of accumulated depreciation 1,817,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1993 (A)    
Grand Rapids, MI [Member]
      
Initial Cost      
Land 1,926,000    
Buildings & Improvements 8,039,000    
Improvements 0    
Total Cost      
Land 1,926,000    
Buildings & Improvements 9,984,000    
Total 11,910,000    
Accumulated Depreciation 4,610,000    
Total cost of real estate net of accumulated depreciation 7,300,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1995 (A)    
Grand Rapids, MI [Member]
      
Initial Cost      
Land 1,454,000    
Buildings & Improvements 9,284,000    
Improvements 0    
Total Cost      
Land 1,454,000    
Buildings & Improvements 14,091,000    
Total 15,545,000    
Accumulated Depreciation 4,282,000    
Total cost of real estate net of accumulated depreciation 11,263,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Houghton, MI [Member]
      
Initial Cost      
Land 100,000    
Buildings & Improvements 7,301,000    
Improvements 1,821,000    
Total Cost      
Land 100,000    
Buildings & Improvements 11,726,000    
Total 11,826,000    
Accumulated Depreciation 11,190,000    
Total cost of real estate net of accumulated depreciation 636,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 30.0    
Date of Construction (C) Acquisition (A) 1980 (C)    
Howell, MI [Member]
      
Initial Cost      
Land 332,000    
Buildings & Improvements 11,938,000    
Improvements 0    
Total Cost      
Land 332,000    
Buildings & Improvements 15,836,000    
Total 16,168,000    
Accumulated Depreciation 8,479,000    
Total cost of real estate net of accumulated depreciation 7,689,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1993 (A)    
Meridian, ID [Member]
      
Initial Cost      
Land 24,591,000    
Buildings & Improvements 31,779,000    
Improvements 0    
Total Cost      
Land 24,841,000    
Buildings & Improvements 61,068,000    
Total 85,909,000    
Accumulated Depreciation 17,109,000    
Total cost of real estate net of accumulated depreciation 68,800,000    
Encumbrances 37,200,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2001 (C)    
Midvale, UT [Member]
      
Initial Cost      
Land 25,662,000    
Buildings & Improvements 56,759,000    
Improvements 0    
Total Cost      
Land 28,395,000    
Buildings & Improvements 82,808,000    
Total 111,203,000    
Accumulated Depreciation 28,087,000    
Total cost of real estate net of accumulated depreciation 83,116,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Taylorsville, UT [Member]
      
Initial Cost      
Land 24,327,000    
Buildings & Improvements 53,686,000    
Improvements 0    
Total Cost      
Land 31,368,000    
Buildings & Improvements 76,896,000    
Total 108,264,000    
Accumulated Depreciation 30,136,000    
Total cost of real estate net of accumulated depreciation 78,128,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Orem, UT [Member]
      
Initial Cost      
Land 5,428,000    
Buildings & Improvements 12,259,000    
Improvements 0    
Total Cost      
Land 5,428,000    
Buildings & Improvements 13,266,000    
Total 18,694,000    
Accumulated Depreciation 5,794,000    
Total cost of real estate net of accumulated depreciation 12,900,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Riverdale, UT [Member]
      
Initial Cost      
Land 24,755,000    
Buildings & Improvements 45,635,000    
Improvements 0    
Total Cost      
Land 24,755,000    
Buildings & Improvements 52,780,000    
Total 77,535,000    
Accumulated Depreciation 20,046,000    
Total cost of real estate net of accumulated depreciation 57,489,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Bemidji, MN [Member]
      
Initial Cost      
Land 436,000    
Buildings & Improvements 8,229,000    
Improvements 500,000    
Total Cost      
Land 436,000    
Buildings & Improvements 11,681,000    
Total 12,117,000    
Accumulated Depreciation 9,134,000    
Total cost of real estate net of accumulated depreciation 2,983,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 30.0    
Date of Construction (C) Acquisition (A) 1977 (C)    
Salt Lake City, UT [Member]
      
Initial Cost      
Land 2,801,000    
Buildings & Improvements 5,997,000    
Improvements 0    
Total Cost      
Land 2,801,000    
Buildings & Improvements 6,956,000    
Total 9,757,000    
Accumulated Depreciation 2,850,000    
Total cost of real estate net of accumulated depreciation 6,907,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Ogden, UT [Member]
      
Initial Cost      
Land 3,620,000    
Buildings & Improvements 7,716,000    
Improvements 0    
Total Cost      
Land 8,305,000    
Buildings & Improvements 8,682,000    
Total 16,987,000    
Accumulated Depreciation 3,800,000    
Total cost of real estate net of accumulated depreciation 13,187,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Birmingham, AL [member]
      
Initial Cost      
Land 1,007,000    
Buildings & Improvements 13,798,000    
Improvements 0    
Total Cost      
Land 1,007,000    
Buildings & Improvements 13,798,000    
Total 14,805,000    
Accumulated Depreciation 11,844,000    
Total cost of real estate net of accumulated depreciation 2,961,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1994 (A)    
Birmingham, AL [member]
      
Initial Cost      
Land 10,573,000    
Buildings & Improvements 26,002,000    
Improvements 0    
Total Cost      
Land 11,434,000    
Buildings & Improvements 52,161,000    
Total 63,595,000    
Accumulated Depreciation 22,400,000    
Total cost of real estate net of accumulated depreciation 41,195,000    
Encumbrances 24,476,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1995 (A)    
Valencia, CA [Member]
      
Initial Cost      
Land 0    
Buildings & Improvements 15,784,000    
Improvements 0    
Total Cost      
Land 0    
Buildings & Improvements 15,784,000    
Total 15,784,000    
Accumulated Depreciation 2,559,000    
Total cost of real estate net of accumulated depreciation 13,225,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2006 (A)    
Allentown, PA [Member]
      
Initial Cost      
Land 4,408,000    
Buildings & Improvements 4,707,000    
Improvements 0    
Total Cost      
Land 4,408,000    
Buildings & Improvements 4,707,000    
Total 9,115,000    
Accumulated Depreciation 1,222,000    
Total cost of real estate net of accumulated depreciation 7,893,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Allentown, PA [Member]
      
Initial Cost      
Land 5,558,000    
Buildings & Improvements 20,060,000    
Improvements 0    
Total Cost      
Land 5,558,000    
Buildings & Improvements 22,843,000    
Total 28,401,000    
Accumulated Depreciation 6,211,000    
Total cost of real estate net of accumulated depreciation 22,190,000    
Encumbrances 13,259,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Mooresville, NC [Member]
      
Initial Cost      
Land 14,369,000    
Buildings & Improvements 43,688,000    
Improvements 0    
Total Cost      
Land 14,369,000    
Buildings & Improvements 45,457,000    
Total 59,826,000    
Accumulated Depreciation 10,626,000    
Total cost of real estate net of accumulated depreciation 49,200,000    
Encumbrances 18,057,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Wilmington, NC [Member]
      
Initial Cost      
Land 4,287,000    
Buildings & Improvements 16,852,000    
Improvements 1,183,000    
Total Cost      
Land 4,287,000    
Buildings & Improvements 34,142,000    
Total 38,429,000    
Accumulated Depreciation 18,630,000    
Total cost of real estate net of accumulated depreciation 19,799,000    
Encumbrances 24,500,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1989 (C)    
Spring Hill, FL [Member]
      
Initial Cost      
Land 1,084,000    
Buildings & Improvements 4,816,000    
Improvements 266,000    
Total Cost      
Land 2,096,000    
Buildings & Improvements 11,348,000    
Total 13,444,000    
Accumulated Depreciation 6,302,000    
Total cost of real estate net of accumulated depreciation 7,142,000    
Encumbrances 3,690,000    
Depreciable Lives (Years)(1) 30.0    
Date of Construction (C) Acquisition (A) 1988 (C)    
Tiffin, OH [Member]
      
Initial Cost      
Land 168,000    
Buildings & Improvements 5,908,000    
Improvements 435,000    
Total Cost      
Land 168,000    
Buildings & Improvements 6,659,000    
Total 6,827,000    
Accumulated Depreciation 5,895,000    
Total cost of real estate net of accumulated depreciation 932,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 30.0    
Date of Construction (C) Acquisition (A) 1980 (C)    
Broomfield, CO [Member]
      
Initial Cost      
Land 13,707,000    
Buildings & Improvements 31,809,000    
Improvements 0    
Total Cost      
Land 13,707,000    
Buildings & Improvements 43,680,000    
Total 57,387,000    
Accumulated Depreciation 11,404,000    
Total cost of real estate net of accumulated depreciation 45,983,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Centennial, CO [Member]
      
Initial Cost      
Land 7,833,000    
Buildings & Improvements 35,550,000    
Improvements 0    
Total Cost      
Land 8,082,000    
Buildings & Improvements 57,273,000    
Total 65,355,000    
Accumulated Depreciation 23,596,000    
Total cost of real estate net of accumulated depreciation 41,759,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1997 (C)    
New Bern, NC [Member]
      
Initial Cost      
Land 441,000    
Buildings & Improvements 6,575,000    
Improvements 0    
Total Cost      
Land 441,000    
Buildings & Improvements 6,575,000    
Total 7,016,000    
Accumulated Depreciation 3,397,000    
Total cost of real estate net of accumulated depreciation 3,619,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1989 (C)    
Princeton, NJ [Member]
      
Initial Cost      
Land 7,121,000    
Buildings & Improvements 29,783,000    
Improvements 0    
Total Cost      
Land 7,121,000    
Buildings & Improvements 37,507,000    
Total 44,628,000    
Accumulated Depreciation 15,227,000    
Total cost of real estate net of accumulated depreciation 29,401,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Princeton, NJ [Member]
      
Initial Cost      
Land 6,327,000    
Buildings & Improvements 44,466,000    
Improvements 0    
Total Cost      
Land 7,343,000    
Buildings & Improvements 56,114,000    
Total 63,457,000    
Accumulated Depreciation 18,246,000    
Total cost of real estate net of accumulated depreciation 45,211,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2000 (C)    
Russellville, AR [Member]
      
Initial Cost      
Land 606,000    
Buildings & Improvements 13,391,000    
Improvements 0    
Total Cost      
Land 606,000    
Buildings & Improvements 18,064,000    
Total 18,670,000    
Accumulated Depreciation 8,136,000    
Total cost of real estate net of accumulated depreciation 10,534,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1994 (A)    
N. Little Rock, AR [Member]
      
Initial Cost      
Land 907,000    
Buildings & Improvements 17,160,000    
Improvements 0    
Total Cost      
Land 907,000    
Buildings & Improvements 19,700,000    
Total 20,607,000    
Accumulated Depreciation 8,861,000    
Total cost of real estate net of accumulated depreciation 11,746,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1994 (A)    
Ottumwa, IA [Member]
      
Initial Cost      
Land 139,000    
Buildings & Improvements 8,564,000    
Improvements 103,000    
Total Cost      
Land 139,000    
Buildings & Improvements 11,762,000    
Total 11,901,000    
Accumulated Depreciation 8,539,000    
Total cost of real estate net of accumulated depreciation 3,362,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1990 (C)    
Washington, NC [Member]
      
Initial Cost      
Land 878,000    
Buildings & Improvements 3,118,000    
Improvements 34,000    
Total Cost      
Land 878,000    
Buildings & Improvements 6,132,000    
Total 7,010,000    
Accumulated Depreciation 2,873,000    
Total cost of real estate net of accumulated depreciation 4,137,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1990 (C)    
Littleton, CO [Member]
      
Initial Cost      
Land 12,249,000    
Buildings & Improvements 50,709,000    
Improvements 0    
Total Cost      
Land 12,621,000    
Buildings & Improvements 55,478,000    
Total 68,099,000    
Accumulated Depreciation 16,930,000    
Total cost of real estate net of accumulated depreciation 51,169,000    
Encumbrances 42,200,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2002 (C)    
Durham, NC [Member]
      
Initial Cost      
Land 2,210,000    
Buildings & Improvements 11,671,000    
Improvements 278,000    
Total Cost      
Land 2,210,000    
Buildings & Improvements 14,138,000    
Total 16,348,000    
Accumulated Depreciation 9,385,000    
Total cost of real estate net of accumulated depreciation 6,963,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1990 (C)    
Crystal River, FL [Member]
      
Initial Cost      
Land 1,217,000    
Buildings & Improvements 5,796,000    
Improvements 365,000    
Total Cost      
Land 1,219,000    
Buildings & Improvements 10,236,000    
Total 11,455,000    
Accumulated Depreciation 5,547,000    
Total cost of real estate net of accumulated depreciation 5,908,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1986 (C)    
Denver, CO [Member]
      
Initial Cost      
Land 2,987,000    
Buildings & Improvements 11,950,000    
Improvements 0    
Total Cost      
Land 2,987,000    
Buildings & Improvements 11,950,000    
Total 14,937,000    
Accumulated Depreciation 9,762,000    
Total cost of real estate net of accumulated depreciation 5,175,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2001 (A)    
Denver, CO [Member]
      
Initial Cost      
Land 20,733,000    
Buildings & Improvements 22,818,000    
Improvements 0    
Total Cost      
Land 20,804,000    
Buildings & Improvements 24,393,000    
Total 45,197,000    
Accumulated Depreciation 7,254,000    
Total cost of real estate net of accumulated depreciation 37,943,000    
Encumbrances 24,286,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Silver Springs, MD [Member]
      
Initial Cost      
Land 7,476,000    
Buildings & Improvements 20,980,000    
Improvements 0    
Total Cost      
Land 7,476,000    
Buildings & Improvements 25,912,000    
Total 33,388,000    
Accumulated Depreciation 9,687,000    
Total cost of real estate net of accumulated depreciation 23,701,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2001 (A)    
Dublin, OH [Member]
      
Initial Cost      
Land 3,609,000    
Buildings & Improvements 11,546,000    
Improvements 0    
Total Cost      
Land 3,609,000    
Buildings & Improvements 14,248,000    
Total 17,857,000    
Accumulated Depreciation 5,298,000    
Total cost of real estate net of accumulated depreciation 12,559,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Hamilton, OH [Member]
      
Initial Cost      
Land 495,000    
Buildings & Improvements 1,618,000    
Improvements 0    
Total Cost      
Land 495,000    
Buildings & Improvements 1,618,000    
Total 2,113,000    
Accumulated Depreciation 706,000    
Total cost of real estate net of accumulated depreciation 1,407,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Hamilton, NJ [Member]
      
Initial Cost      
Land 8,039,000    
Buildings & Improvements 49,896,000    
Improvements 0    
Total Cost      
Land 11,774,000    
Buildings & Improvements 85,301,000    
Total 97,075,000    
Accumulated Depreciation 20,102,000    
Total cost of real estate net of accumulated depreciation 76,973,000    
Encumbrances 41,196,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Barboursville, WV [Member]
      
Initial Cost      
Land 0    
Buildings & Improvements 1,417,000    
Improvements 2,000    
Total Cost      
Land 0    
Buildings & Improvements 1,977,000    
Total 1,977,000    
Accumulated Depreciation 837,000    
Total cost of real estate net of accumulated depreciation 1,140,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Columbus, OH [Member]
      
Initial Cost      
Land 11,087,000    
Buildings & Improvements 44,494,000    
Improvements 0    
Total Cost      
Land 12,243,000    
Buildings & Improvements 52,877,000    
Total 65,120,000    
Accumulated Depreciation 21,589,000    
Total cost of real estate net of accumulated depreciation 43,531,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1998 (A)    
Columbus, OH [Member]
      
Initial Cost      
Land 18,716,000    
Buildings & Improvements 64,617,000    
Improvements 0    
Total Cost      
Land 18,716,000    
Buildings & Improvements 64,617,000    
Total 83,333,000    
Accumulated Depreciation 194,000    
Total cost of real estate net of accumulated depreciation 83,139,000    
Encumbrances 45,247,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2011 (A)    
Freehold, NJ [Member]
      
Initial Cost      
Land 2,460,000    
Buildings & Improvements 2,475,000    
Improvements 0    
Total Cost      
Land 3,166,000    
Buildings & Improvements 3,267,000    
Total 6,433,000    
Accumulated Depreciation 307,000    
Total cost of real estate net of accumulated depreciation 6,126,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1994 (A)    
Jackson, MS [Member]
      
Initial Cost      
Land 4,190,000    
Buildings & Improvements 6,783,000    
Improvements 0    
Total Cost      
Land 4,190,000    
Buildings & Improvements 6,861,000    
Total 11,051,000    
Accumulated Depreciation 2,031,000    
Total cost of real estate net of accumulated depreciation 9,020,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Scottsboro, AL [Member]
      
Initial Cost      
Land 788,000    
Buildings & Improvements 2,781,000    
Improvements 0    
Total Cost      
Land 788,000    
Buildings & Improvements 3,230,000    
Total 4,018,000    
Accumulated Depreciation 973,000    
Total cost of real estate net of accumulated depreciation 3,045,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Ocala, FL [Member]
      
Initial Cost      
Land 1,916,000    
Buildings & Improvements 3,893,000    
Improvements 0    
Total Cost      
Land 1,916,000    
Buildings & Improvements 6,012,000    
Total 7,928,000    
Accumulated Depreciation 1,539,000    
Total cost of real estate net of accumulated depreciation 6,389,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Ocala, FL [Member]
      
Initial Cost      
Land 2,877,000    
Buildings & Improvements 9,407,000    
Improvements 0    
Total Cost      
Land 2,877,000    
Buildings & Improvements 9,932,000    
Total 12,809,000    
Accumulated Depreciation 1,539,000    
Total cost of real estate net of accumulated depreciation 11,270,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Tallahassee, FL [Member]
      
Initial Cost      
Land 1,881,000    
Buildings & Improvements 2,956,000    
Improvements 0    
Total Cost      
Land 1,881,000    
Buildings & Improvements 7,297,000    
Total 9,178,000    
Accumulated Depreciation 1,788,000    
Total cost of real estate net of accumulated depreciation 7,390,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Chamblee, GA [Member]
      
Initial Cost      
Land 2,381,000    
Buildings & Improvements 4,017,000    
Improvements 0    
Total Cost      
Land 2,381,000    
Buildings & Improvements 4,017,000    
Total 6,398,000    
Accumulated Depreciation 1,902,000    
Total cost of real estate net of accumulated depreciation 4,496,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Cumming, GA [Member]
      
Initial Cost      
Land 14,249,000    
Buildings & Improvements 23,653,000    
Improvements 0    
Total Cost      
Land 14,249,000    
Buildings & Improvements 24,890,000    
Total 39,139,000    
Accumulated Depreciation 7,290,000    
Total cost of real estate net of accumulated depreciation 31,849,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Douglasville, GA [Member]
      
Initial Cost      
Land 3,540,000    
Buildings & Improvements 9,625,000    
Improvements 0    
Total Cost      
Land 3,540,000    
Buildings & Improvements 9,877,000    
Total 13,417,000    
Accumulated Depreciation 2,877,000    
Total cost of real estate net of accumulated depreciation 10,540,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Columbus, GA [Member]
      
Initial Cost      
Land 4,220,000    
Buildings & Improvements 8,159,000    
Improvements 0    
Total Cost      
Land 4,220,000    
Buildings & Improvements 10,101,000    
Total 14,321,000    
Accumulated Depreciation 2,645,000    
Total cost of real estate net of accumulated depreciation 11,676,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Newnan, GA [Member]
      
Initial Cost      
Land 2,620,000    
Buildings & Improvements 11,063,000    
Improvements 0    
Total Cost      
Land 2,620,000    
Buildings & Improvements 11,643,000    
Total 14,263,000    
Accumulated Depreciation 3,391,000    
Total cost of real estate net of accumulated depreciation 10,872,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Warner Robins, GA [Member]
      
Initial Cost      
Land 5,729,000    
Buildings & Improvements 7,459,000    
Improvements 0    
Total Cost      
Land 5,729,000    
Buildings & Improvements 7,665,000    
Total 13,394,000    
Accumulated Depreciation 2,347,000    
Total cost of real estate net of accumulated depreciation 11,047,000    
Encumbrances 6,753,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Woodstock, GA [Member]
      
Initial Cost      
Land 1,486,000    
Buildings & Improvements 2,573,000    
Improvements 0    
Total Cost      
Land 1,486,000    
Buildings & Improvements 2,573,000    
Total 4,059,000    
Accumulated Depreciation 1,803,000    
Total cost of real estate net of accumulated depreciation 2,256,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Fayetteville, NC [Member]
      
Initial Cost      
Land 8,524,000    
Buildings & Improvements 10,627,000    
Improvements 0    
Total Cost      
Land 8,524,000    
Buildings & Improvements 14,451,000    
Total 22,975,000    
Accumulated Depreciation 3,800,000    
Total cost of real estate net of accumulated depreciation 19,175,000    
Encumbrances 9,867,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Charleston, SC [Member]
      
Initial Cost      
Land 3,479,000    
Buildings & Improvements 9,850,000    
Improvements 0    
Total Cost      
Land 3,479,000    
Buildings & Improvements 14,924,000    
Total 18,403,000    
Accumulated Depreciation 7,059,000    
Total cost of real estate net of accumulated depreciation 11,344,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Chattanooga, TN [Member]
      
Initial Cost      
Land 1,845,000    
Buildings & Improvements 13,214,000    
Improvements 0    
Total Cost      
Land 1,845,000    
Buildings & Improvements 16,325,000    
Total 18,170,000    
Accumulated Depreciation 5,160,000    
Total cost of real estate net of accumulated depreciation 13,010,000    
Encumbrances 9,891,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Hendersonville, TN [Member]
      
Initial Cost      
Land 3,249,000    
Buildings & Improvements 9,068,000    
Improvements 0    
Total Cost      
Land 3,249,000    
Buildings & Improvements 9,068,000    
Total 12,317,000    
Accumulated Depreciation 2,651,000    
Total cost of real estate net of accumulated depreciation 9,666,000    
Encumbrances 6,080,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Johnson City, TN [Member]
      
Initial Cost      
Land 0    
Buildings & Improvements 521,000    
Improvements 0    
Total Cost      
Land 0    
Buildings & Improvements 2,013,000    
Total 2,013,000    
Accumulated Depreciation 352,000    
Total cost of real estate net of accumulated depreciation 1,661,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Chester, VA [Member]
      
Initial Cost      
Land 10,780,000    
Buildings & Improvements 4,752,000    
Improvements 0    
Total Cost      
Land 10,780,000    
Buildings & Improvements 7,094,000    
Total 17,874,000    
Accumulated Depreciation 2,303,000    
Total cost of real estate net of accumulated depreciation 15,571,000    
Encumbrances 7,424,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Brookfield, WI [Member]
      
Initial Cost      
Land 588,000    
Buildings & Improvements 0    
Improvements 0    
Total Cost      
Land 588,000    
Buildings & Improvements 3,213,000    
Total 3,801,000    
Accumulated Depreciation 505,000    
Total cost of real estate net of accumulated depreciation 3,296,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Milwaukee, WI [Member]
      
Initial Cost      
Land 4,527,000    
Buildings & Improvements 3,600,000    
Improvements 0    
Total Cost      
Land 4,527,000    
Buildings & Improvements 4,888,000    
Total 9,415,000    
Accumulated Depreciation 1,336,000    
Total cost of real estate net of accumulated depreciation 8,079,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Suwanee, GA [Member]
      
Initial Cost      
Land 13,479,000    
Buildings & Improvements 23,923,000    
Improvements 0    
Total Cost      
Land 13,479,000    
Buildings & Improvements 28,991,000    
Total 42,470,000    
Accumulated Depreciation 8,557,000    
Total cost of real estate net of accumulated depreciation 33,913,000    
Encumbrances 25,717,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
West Allis, WI [Member]
      
Initial Cost      
Land 2,371,000    
Buildings & Improvements 10,982,000    
Improvements 0    
Total Cost      
Land 2,371,000    
Buildings & Improvements 11,621,000    
Total 13,992,000    
Accumulated Depreciation 3,324,000    
Total cost of real estate net of accumulated depreciation 10,668,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Orland Park, IL [Member]
      
Initial Cost      
Land 10,430,000    
Buildings & Improvements 13,081,000    
Improvements 0    
Total Cost      
Land 10,430,000    
Buildings & Improvements 13,082,000    
Total 23,512,000    
Accumulated Depreciation 3,248,000    
Total cost of real estate net of accumulated depreciation 20,264,000    
Encumbrances 6,658,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Louisville, KY [Member]
      
Initial Cost      
Land 4,180,000    
Buildings & Improvements 747,000    
Improvements 0    
Total Cost      
Land 4,288,000    
Buildings & Improvements 1,996,000    
Total 6,284,000    
Accumulated Depreciation 447,000    
Total cost of real estate net of accumulated depreciation 5,837,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
West Long Branch, NJ [Member]
      
Initial Cost      
Land 14,131,000    
Buildings & Improvements 51,982,000    
Improvements 0    
Total Cost      
Land 14,131,000    
Buildings & Improvements 54,269,000    
Total 68,400,000    
Accumulated Depreciation 13,279,000    
Total cost of real estate net of accumulated depreciation 55,121,000    
Encumbrances 3,747,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Mays Landing, NJ [Member]
      
Initial Cost      
Land 49,033,000    
Buildings & Improvements 107,230,000    
Improvements 0    
Total Cost      
Land 49,033,000    
Buildings & Improvements 113,344,000    
Total 162,377,000    
Accumulated Depreciation 28,128,000    
Total cost of real estate net of accumulated depreciation 134,249,000    
Encumbrances 64,794,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Mays Landing, NJ [Member]
      
Initial Cost      
Land 36,224,000    
Buildings & Improvements 56,949,000    
Improvements 0    
Total Cost      
Land 36,224,000    
Buildings & Improvements 60,897,000    
Total 97,121,000    
Accumulated Depreciation 15,545,000    
Total cost of real estate net of accumulated depreciation 81,576,000    
Encumbrances 6,745,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Lakeland, FL [Member]
      
Initial Cost      
Land 2,778,000    
Buildings & Improvements 2,302,000    
Improvements 0    
Total Cost      
Land 2,778,000    
Buildings & Improvements 2,302,000    
Total 5,080,000    
Accumulated Depreciation 1,118,000    
Total cost of real estate net of accumulated depreciation 3,962,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Lakeland, FL [Member]
      
Initial Cost      
Land 2,800,000    
Buildings & Improvements 3,148,000    
Improvements 0    
Total Cost      
Land 2,800,000    
Buildings & Improvements 3,682,000    
Total 6,482,000    
Accumulated Depreciation 1,098,000    
Total cost of real estate net of accumulated depreciation 5,384,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Toledo, OH [Member]
      
Initial Cost      
Land 1,316,000    
Buildings & Improvements 3,961,000    
Improvements 0    
Total Cost      
Land 1,316,000    
Buildings & Improvements 3,961,000    
Total 5,277,000    
Accumulated Depreciation 1,008,000    
Total cost of real estate net of accumulated depreciation 4,269,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Englewood, FL [Member]
      
Initial Cost      
Land 366,000    
Buildings & Improvements 1,163,000    
Improvements 0    
Total Cost      
Land 366,000    
Buildings & Improvements 1,163,000    
Total 1,529,000    
Accumulated Depreciation 745,000    
Total cost of real estate net of accumulated depreciation 784,000    
Encumbrances 534,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Indian Trail, NC [Member]
      
Initial Cost      
Land 2,999,000    
Buildings & Improvements 7,075,000    
Improvements 0    
Total Cost      
Land 2,999,000    
Buildings & Improvements 7,470,000    
Total 10,469,000    
Accumulated Depreciation 1,930,000    
Total cost of real estate net of accumulated depreciation 8,539,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Ashtabula, OH [Member]
      
Initial Cost      
Land 1,444,000    
Buildings & Improvements 9,912,000    
Improvements 0    
Total Cost      
Land 1,444,000    
Buildings & Improvements 10,058,000    
Total 11,502,000    
Accumulated Depreciation 2,478,000    
Total cost of real estate net of accumulated depreciation 9,024,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Horseheads, NY [Member]
      
Initial Cost      
Land 659,000    
Buildings & Improvements 2,426,000    
Improvements 0    
Total Cost      
Land 4,777,000    
Buildings & Improvements 33,423,000    
Total 38,200,000    
Accumulated Depreciation 2,600,000    
Total cost of real estate net of accumulated depreciation 35,600,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
West Seneca, NY [Member]
      
Initial Cost      
Land 2,929,000    
Buildings & Improvements 12,926,000    
Improvements 0    
Total Cost      
Land 2,929,000    
Buildings & Improvements 13,190,000    
Total 16,119,000    
Accumulated Depreciation 3,226,000    
Total cost of real estate net of accumulated depreciation 12,893,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
West Seneca, NY [Member]
      
Initial Cost      
Land 1,089,000    
Buildings & Improvements 2,178,000    
Improvements 0    
Total Cost      
Land 1,089,000    
Buildings & Improvements 2,178,000    
Total 3,267,000    
Accumulated Depreciation 976,000    
Total cost of real estate net of accumulated depreciation 2,291,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
N. Tonawanda, NY [Member]
      
Initial Cost      
Land 5,806,000    
Buildings & Improvements 21,291,000    
Improvements 0    
Total Cost      
Land 5,806,000    
Buildings & Improvements 22,529,000    
Total 28,335,000    
Accumulated Depreciation 5,915,000    
Total cost of real estate net of accumulated depreciation 22,420,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Amherst, NY [Member]
      
Initial Cost      
Land 5,873,000    
Buildings & Improvements 22,458,000    
Improvements 0    
Total Cost      
Land 5,873,000    
Buildings & Improvements 23,249,000    
Total 29,122,000    
Accumulated Depreciation 8,173,000    
Total cost of real estate net of accumulated depreciation 20,949,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Ithaca, NY [Member]
      
Initial Cost      
Land 9,198,000    
Buildings & Improvements 42,969,000    
Improvements 0    
Total Cost      
Land 9,198,000    
Buildings & Improvements 43,640,000    
Total 52,838,000    
Accumulated Depreciation 10,629,000    
Total cost of real estate net of accumulated depreciation 42,209,000    
Encumbrances 11,748,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Hamburg, NY [Member]
      
Initial Cost      
Land 3,303,000    
Buildings & Improvements 16,239,000    
Improvements 0    
Total Cost      
Land 3,303,000    
Buildings & Improvements 16,771,000    
Total 20,074,000    
Accumulated Depreciation 4,404,000    
Total cost of real estate net of accumulated depreciation 15,670,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Hamburg, NY [Member]
      
Initial Cost      
Land 4,071,000    
Buildings & Improvements 17,142,000    
Improvements 0    
Total Cost      
Land 4,071,000    
Buildings & Improvements 17,877,000    
Total 21,948,000    
Accumulated Depreciation 4,439,000    
Total cost of real estate net of accumulated depreciation 17,509,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Hamburg, NY [Member]
      
Initial Cost      
Land 4,152,000    
Buildings & Improvements 22,075,000    
Improvements 0    
Total Cost      
Land 4,152,000    
Buildings & Improvements 22,714,000    
Total 26,866,000    
Accumulated Depreciation 5,588,000    
Total cost of real estate net of accumulated depreciation 21,278,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Hamburg, NY [Member]
      
Initial Cost      
Land 2,527,000    
Buildings & Improvements 14,711,000    
Improvements 0    
Total Cost      
Land 2,527,000    
Buildings & Improvements 15,153,000    
Total 17,680,000    
Accumulated Depreciation 3,846,000    
Total cost of real estate net of accumulated depreciation 13,834,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Tonawanda, NY [Member]
      
Initial Cost      
Land 3,061,000    
Buildings & Improvements 6,887,000    
Improvements 0    
Total Cost      
Land 3,061,000    
Buildings & Improvements 8,287,000    
Total 11,348,000    
Accumulated Depreciation 2,063,000    
Total cost of real estate net of accumulated depreciation 9,285,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Olean, NY [Member]
      
Initial Cost      
Land 8,834,000    
Buildings & Improvements 29,813,000    
Improvements 0    
Total Cost      
Land 8,844,000    
Buildings & Improvements 31,630,000    
Total 40,474,000    
Accumulated Depreciation 8,127,000    
Total cost of real estate net of accumulated depreciation 32,347,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Big Flats, NY [Member]
      
Initial Cost      
Land 22,229,000    
Buildings & Improvements 52,579,000    
Improvements 0    
Total Cost      
Land 22,279,000    
Buildings & Improvements 57,506,000    
Total 79,785,000    
Accumulated Depreciation 16,443,000    
Total cost of real estate net of accumulated depreciation 63,342,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Williamsville, NY [Member]
      
Initial Cost      
Land 5,021,000    
Buildings & Improvements 6,768,000    
Improvements 0    
Total Cost      
Land 5,021,000    
Buildings & Improvements 8,857,000    
Total 13,878,000    
Accumulated Depreciation 2,492,000    
Total cost of real estate net of accumulated depreciation 11,386,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Greece, NY [Member]
      
Initial Cost      
Land 3,901,000    
Buildings & Improvements 4,922,000    
Improvements 0    
Total Cost      
Land 3,901,000    
Buildings & Improvements 4,923,000    
Total 8,824,000    
Accumulated Depreciation 1,237,000    
Total cost of real estate net of accumulated depreciation 7,587,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Buffalo, NY [Member]
      
Initial Cost      
Land 6,010,000    
Buildings & Improvements 19,044,000    
Improvements 0    
Total Cost      
Land 6,010,000    
Buildings & Improvements 19,267,000    
Total 25,277,000    
Accumulated Depreciation 4,870,000    
Total cost of real estate net of accumulated depreciation 20,407,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Buffalo, NY [Member]
      
Initial Cost      
Land 3,568,000    
Buildings & Improvements 29,001,000    
Improvements 0    
Total Cost      
Land 3,620,000    
Buildings & Improvements 29,636,000    
Total 33,256,000    
Accumulated Depreciation 7,229,000    
Total cost of real estate net of accumulated depreciation 26,027,000    
Encumbrances 10,154,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Buffalo, NY [Member]
      
Initial Cost      
Land 1,229,000    
Buildings & Improvements 2,428,000    
Improvements 0    
Total Cost      
Land 1,229,000    
Buildings & Improvements 2,428,000    
Total 3,657,000    
Accumulated Depreciation 385,000    
Total cost of real estate net of accumulated depreciation 3,272,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Lockport, NY [Member]
      
Initial Cost      
Land 9,253,000    
Buildings & Improvements 23,829,000    
Improvements 0    
Total Cost      
Land 9,253,000    
Buildings & Improvements 24,127,000    
Total 33,380,000    
Accumulated Depreciation 6,022,000    
Total cost of real estate net of accumulated depreciation 27,358,000    
Encumbrances 6,520,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Cheektowaga, NY [Member]
      
Initial Cost      
Land 15,471,000    
Buildings & Improvements 25,600,000    
Improvements 0    
Total Cost      
Land 15,471,000    
Buildings & Improvements 27,141,000    
Total 42,612,000    
Accumulated Depreciation 7,305,000    
Total cost of real estate net of accumulated depreciation 35,307,000    
Encumbrances 2,943,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Cheektowaga, NY [Member]
      
Initial Cost      
Land 1,740,000    
Buildings & Improvements 2,417,000    
Improvements 0    
Total Cost      
Land 1,740,000    
Buildings & Improvements 2,417,000    
Total 4,157,000    
Accumulated Depreciation 381,000    
Total cost of real estate net of accumulated depreciation 3,776,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
New Hartford, NY [Member]
      
Initial Cost      
Land 1,279,000    
Buildings & Improvements 13,685,000    
Improvements 0    
Total Cost      
Land 1,279,000    
Buildings & Improvements 13,776,000    
Total 15,055,000    
Accumulated Depreciation 3,436,000    
Total cost of real estate net of accumulated depreciation 11,619,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Gates, NY [Member]
      
Initial Cost      
Land 9,369,000    
Buildings & Improvements 40,672,000    
Improvements 0    
Total Cost      
Land 9,369,000    
Buildings & Improvements 42,135,000    
Total 51,504,000    
Accumulated Depreciation 10,731,000    
Total cost of real estate net of accumulated depreciation 40,773,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Rome, NY [Member]
      
Initial Cost      
Land 4,565,000    
Buildings & Improvements 5,078,000    
Improvements 0    
Total Cost      
Land 4,565,000    
Buildings & Improvements 9,411,000    
Total 13,976,000    
Accumulated Depreciation 2,125,000    
Total cost of real estate net of accumulated depreciation 11,851,000    
Encumbrances 2,456,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Dewitt, NY [Member]
      
Initial Cost      
Land 881,000    
Buildings & Improvements 5,686,000    
Improvements 0    
Total Cost      
Land 881,000    
Buildings & Improvements 5,686,000    
Total 6,567,000    
Accumulated Depreciation 1,397,000    
Total cost of real estate net of accumulated depreciation 5,170,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Niskayuna, NY [Member]
      
Initial Cost      
Land 20,297,000    
Buildings & Improvements 51,155,000    
Improvements 0    
Total Cost      
Land 20,297,000    
Buildings & Improvements 52,471,000    
Total 72,768,000    
Accumulated Depreciation 13,384,000    
Total cost of real estate net of accumulated depreciation 59,384,000    
Encumbrances 15,761,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
Victor, NY [Member]
      
Initial Cost      
Land 2,374,000    
Buildings & Improvements 6,433,000    
Improvements 0    
Total Cost      
Land 2,374,000    
Buildings & Improvements 6,683,000    
Total 9,057,000    
Accumulated Depreciation 1,654,000    
Total cost of real estate net of accumulated depreciation 7,403,000    
Encumbrances 5,937,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2004 (A)    
St. John, MO [Member]
      
Initial Cost      
Land 2,613,000    
Buildings & Improvements 7,040,000    
Improvements 0    
Total Cost      
Land 2,827,000    
Buildings & Improvements 8,119,000    
Total 10,946,000    
Accumulated Depreciation 2,277,000    
Total cost of real estate net of accumulated depreciation 8,669,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Ft. Collins, CO [Member]
      
Initial Cost      
Land 1,129,000    
Buildings & Improvements 2,054,000    
Improvements 0    
Total Cost      
Land 1,129,000    
Buildings & Improvements 4,578,000    
Total 5,707,000    
Accumulated Depreciation 1,221,000    
Total cost of real estate net of accumulated depreciation 4,486,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Lafayette, IN [Member]
      
Initial Cost      
Land 1,217,000    
Buildings & Improvements 2,689,000    
Improvements 0    
Total Cost      
Land 1,217,000    
Buildings & Improvements 2,950,000    
Total 4,167,000    
Accumulated Depreciation 794,000    
Total cost of real estate net of accumulated depreciation 3,373,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Lansing, MI [Member]
      
Initial Cost      
Land 1,598,000    
Buildings & Improvements 6,999,000    
Improvements 0    
Total Cost      
Land 1,801,000    
Buildings & Improvements 11,825,000    
Total 13,626,000    
Accumulated Depreciation 2,973,000    
Total cost of real estate net of accumulated depreciation 10,653,000    
Encumbrances 6,610,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2003 (A)    
Kyle, TX [Member]
      
Initial Cost      
Land 2,548,000    
Buildings & Improvements 7,349,000    
Improvements 0    
Total Cost      
Land 4,676,000    
Buildings & Improvements 16,315,000    
Total 20,991,000    
Accumulated Depreciation 655,000    
Total cost of real estate net of accumulated depreciation 20,336,000    
Encumbrances 23,506,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2009 (C)    
Marietta, GA [Member]
      
Initial Cost      
Land 9,745,000    
Buildings & Improvements 27,737,000    
Improvements 0    
Total Cost      
Land 9,745,000    
Buildings & Improvements 29,132,000    
Total 38,877,000    
Accumulated Depreciation 1,928,000    
Total cost of real estate net of accumulated depreciation 36,949,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2009 (A)    
Maple Grove, MN [Member]
      
Initial Cost      
Land 8,917,000    
Buildings & Improvements 23,954,000    
Improvements 0    
Total Cost      
Land 8,917,000    
Buildings & Improvements 24,242,000    
Total 33,159,000    
Accumulated Depreciation 616,000    
Total cost of real estate net of accumulated depreciation 32,543,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 1996 (A)    
Charlotte, NC [Member]
      
Initial Cost      
Land 27,707,000    
Buildings & Improvements 45,021,000    
Improvements 0    
Total Cost      
Land 27,707,000    
Buildings & Improvements 45,125,000    
Total 72,832,000    
Accumulated Depreciation 436,000    
Total cost of real estate net of accumulated depreciation 72,396,000    
Encumbrances 50,661,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2011 (A)    
Charlotte, NC [Member]
      
Initial Cost      
Land 4,733,000    
Buildings & Improvements 5,424,000    
Improvements 0    
Total Cost      
Land 4,733,000    
Buildings & Improvements 5,424,000    
Total 10,157,000    
Accumulated Depreciation 46,000    
Total cost of real estate net of accumulated depreciation 10,111,000    
Encumbrances 6,589,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2011 (A)    
Colorado Springs, CO [Member]
      
Initial Cost      
Land 4,075,000    
Buildings & Improvements 20,248,000    
Improvements 0    
Total Cost      
Land 4,075,000    
Buildings & Improvements 20,248,000    
Total 24,323,000    
Accumulated Depreciation 239,000    
Total cost of real estate net of accumulated depreciation 24,084,000    
Encumbrances 9,496,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2011 (A)    
Macon, GA [Member]
      
Initial Cost      
Land 2,940,000    
Buildings & Improvements 5,192,000    
Improvements 0    
Total Cost      
Land 2,940,000    
Buildings & Improvements 5,484,000    
Total 8,424,000    
Accumulated Depreciation 871,000    
Total cost of real estate net of accumulated depreciation 7,553,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Snellville, GA [Member]
      
Initial Cost      
Land 10,185,000    
Buildings & Improvements 51,815,000    
Improvements 0    
Total Cost      
Land 10,342,000    
Buildings & Improvements 54,024,000    
Total 64,366,000    
Accumulated Depreciation 8,359,000    
Total cost of real estate net of accumulated depreciation 56,007,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Snellville, GA [Member]
      
Initial Cost      
Land 1,303,000    
Buildings & Improvements 1,494,000    
Improvements 0    
Total Cost      
Land 1,303,000    
Buildings & Improvements 1,494,000    
Total 2,797,000    
Accumulated Depreciation 236,000    
Total cost of real estate net of accumulated depreciation 2,561,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Union, NJ [Member]
      
Initial Cost      
Land 7,650,000    
Buildings & Improvements 15,689,000    
Improvements 0    
Total Cost      
Land 7,650,000    
Buildings & Improvements 19,491,000    
Total 27,141,000    
Accumulated Depreciation 2,723,000    
Total cost of real estate net of accumulated depreciation 24,418,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Spartanburg, SC [Member]
      
Initial Cost      
Land 1,015,000    
Buildings & Improvements 4,486,000    
Improvements 0    
Total Cost      
Land 1,015,000    
Buildings & Improvements 4,486,000    
Total 5,501,000    
Accumulated Depreciation 1,100,000    
Total cost of real estate net of accumulated depreciation 4,401,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Spartanburg, SC [Member]
      
Initial Cost      
Land 1,255,000    
Buildings & Improvements 2,226,000    
Improvements 0    
Total Cost      
Land 1,255,000    
Buildings & Improvements 2,226,000    
Total 3,481,000    
Accumulated Depreciation 353,000    
Total cost of real estate net of accumulated depreciation 3,128,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Taylors, SC [Member]
      
Initial Cost      
Land 1,732,000    
Buildings & Improvements 4,506,000    
Improvements 0    
Total Cost      
Land 1,732,000    
Buildings & Improvements 4,506,000    
Total 6,238,000    
Accumulated Depreciation 715,000    
Total cost of real estate net of accumulated depreciation 5,523,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Dothan, AL [Member]
      
Initial Cost      
Land 2,065,000    
Buildings & Improvements 20,972,000    
Improvements 0    
Total Cost      
Land 2,065,000    
Buildings & Improvements 21,519,000    
Total 23,584,000    
Accumulated Depreciation 3,326,000    
Total cost of real estate net of accumulated depreciation 20,258,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Dothan, AL [Member]
      
Initial Cost      
Land 1,293,000    
Buildings & Improvements 5,931,000    
Improvements 0    
Total Cost      
Land 1,293,000    
Buildings & Improvements 5,931,000    
Total 7,224,000    
Accumulated Depreciation 911,000    
Total cost of real estate net of accumulated depreciation 6,313,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Bradenton, FL [Member]
      
Initial Cost      
Land 10,766,000    
Buildings & Improvements 31,203,000    
Improvements 0    
Total Cost      
Land 10,916,000    
Buildings & Improvements 34,380,000    
Total 45,296,000    
Accumulated Depreciation 5,539,000    
Total cost of real estate net of accumulated depreciation 39,757,000    
Encumbrances 10,549,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Clearwater, FL [Member]
      
Initial Cost      
Land 5,579,000    
Buildings & Improvements 15,855,000    
Improvements 0    
Total Cost      
Land 5,579,000    
Buildings & Improvements 16,308,000    
Total 21,887,000    
Accumulated Depreciation 2,707,000    
Total cost of real estate net of accumulated depreciation 19,180,000    
Encumbrances 7,089,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Tampa, FL [Member]
      
Initial Cost      
Land 1,699,000    
Buildings & Improvements 3,338,000    
Improvements 0    
Total Cost      
Land 1,699,000    
Buildings & Improvements 3,390,000    
Total 5,089,000    
Accumulated Depreciation 515,000    
Total cost of real estate net of accumulated depreciation 4,574,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Tequesta, FL [Member]
      
Initial Cost      
Land 2,108,000    
Buildings & Improvements 7,400,000    
Improvements 0    
Total Cost      
Land 2,108,000    
Buildings & Improvements 8,380,000    
Total 10,488,000    
Accumulated Depreciation 1,680,000    
Total cost of real estate net of accumulated depreciation 8,808,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Kennesaw, GA [Member]
      
Initial Cost      
Land 6,175,000    
Buildings & Improvements 9,028,000    
Improvements 0    
Total Cost      
Land 6,175,000    
Buildings & Improvements 9,137,000    
Total 15,312,000    
Accumulated Depreciation 1,420,000    
Total cost of real estate net of accumulated depreciation 13,892,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Lawrenceville, GA [Member]
      
Initial Cost      
Land 683,000    
Buildings & Improvements 4,303,000    
Improvements 0    
Total Cost      
Land 683,000    
Buildings & Improvements 4,303,000    
Total 4,986,000    
Accumulated Depreciation 1,812,000    
Total cost of real estate net of accumulated depreciation 3,174,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Lawrenceville, GA [Member]
      
Initial Cost      
Land 1,457,000    
Buildings & Improvements 1,057,000    
Improvements 0    
Total Cost      
Land 1,486,000    
Buildings & Improvements 1,146,000    
Total 2,632,000    
Accumulated Depreciation 182,000    
Total cost of real estate net of accumulated depreciation 2,450,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Rome, GA [Member]
      
Initial Cost      
Land 1,523,000    
Buildings & Improvements 4,007,000    
Improvements 0    
Total Cost      
Land 1,523,000    
Buildings & Improvements 4,007,000    
Total 5,530,000    
Accumulated Depreciation 616,000    
Total cost of real estate net of accumulated depreciation 4,914,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Roswell, GA [Member]
      
Initial Cost      
Land 6,566,000    
Buildings & Improvements 15,005,000    
Improvements 0    
Total Cost      
Land 6,566,000    
Buildings & Improvements 15,192,000    
Total 21,758,000    
Accumulated Depreciation 2,393,000    
Total cost of real estate net of accumulated depreciation 19,365,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Hagerstown, MD [Member]
      
Initial Cost      
Land 2,440,000    
Buildings & Improvements 9,697,000    
Improvements 0    
Total Cost      
Land 2,440,000    
Buildings & Improvements 10,873,000    
Total 13,313,000    
Accumulated Depreciation 1,988,000    
Total cost of real estate net of accumulated depreciation 11,325,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Greensboro, NC [Member]
      
Initial Cost      
Land 5,012,000    
Buildings & Improvements 11,162,000    
Improvements 0    
Total Cost      
Land 5,105,000    
Buildings & Improvements 11,485,000    
Total 16,590,000    
Accumulated Depreciation 1,834,000    
Total cost of real estate net of accumulated depreciation 14,756,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Greensboro, NC [Member]
      
Initial Cost      
Land 3,153,000    
Buildings & Improvements 9,455,000    
Improvements 0    
Total Cost      
Land 3,153,000    
Buildings & Improvements 9,597,000    
Total 12,750,000    
Accumulated Depreciation 1,534,000    
Total cost of real estate net of accumulated depreciation 11,216,000    
Encumbrances 4,766,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Greensboro, NC [Member]
      
Initial Cost      
Land 1,682,000    
Buildings & Improvements 7,593,000    
Improvements 0    
Total Cost      
Land 1,682,000    
Buildings & Improvements 7,593,000    
Total 9,275,000    
Accumulated Depreciation 1,588,000    
Total cost of real estate net of accumulated depreciation 7,687,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
East Hanover, NJ [Member]
      
Initial Cost      
Land 3,847,000    
Buildings & Improvements 23,798,000    
Improvements 0    
Total Cost      
Land 3,847,000    
Buildings & Improvements 23,998,000    
Total 27,845,000    
Accumulated Depreciation 3,799,000    
Total cost of real estate net of accumulated depreciation 24,046,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Camp Hill, PA [Member]
      
Initial Cost      
Land 1,631,000    
Buildings & Improvements 8,402,000    
Improvements 0    
Total Cost      
Land 1,631,000    
Buildings & Improvements 8,870,000    
Total 10,501,000    
Accumulated Depreciation 1,363,000    
Total cost of real estate net of accumulated depreciation 9,138,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Middletown, RI [Member]
      
Initial Cost      
Land 3,804,000    
Buildings & Improvements 16,805,000    
Improvements 0    
Total Cost      
Land 3,842,000    
Buildings & Improvements 16,922,000    
Total 20,764,000    
Accumulated Depreciation 2,679,000    
Total cost of real estate net of accumulated depreciation 18,085,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Lexington, SC [Member]
      
Initial Cost      
Land 1,795,000    
Buildings & Improvements 9,933,000    
Improvements 0    
Total Cost      
Land 1,795,000    
Buildings & Improvements 9,977,000    
Total 11,772,000    
Accumulated Depreciation 1,559,000    
Total cost of real estate net of accumulated depreciation 10,213,000    
Encumbrances 4,287,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Newport News, VA [Member]
      
Initial Cost      
Land 10,064,000    
Buildings & Improvements 21,272,000    
Improvements 0    
Total Cost      
Land 10,064,000    
Buildings & Improvements 21,579,000    
Total 31,643,000    
Accumulated Depreciation 3,526,000    
Total cost of real estate net of accumulated depreciation 28,117,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Richmond, VA [Member]
      
Initial Cost      
Land 11,879,000    
Buildings & Improvements 34,736,000    
Improvements 0    
Total Cost      
Land 11,879,000    
Buildings & Improvements 35,537,000    
Total 47,416,000    
Accumulated Depreciation 5,594,000    
Total cost of real estate net of accumulated depreciation 41,822,000    
Encumbrances 12,453,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Springfield, VA [Member]
      
Initial Cost      
Land 12,627,000    
Buildings & Improvements 30,572,000    
Improvements 0    
Total Cost      
Land 12,627,000    
Buildings & Improvements 31,521,000    
Total 44,148,000    
Accumulated Depreciation 4,874,000    
Total cost of real estate net of accumulated depreciation 39,274,000    
Encumbrances 11,016,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Springfield, VA [Member]
      
Initial Cost      
Land 4,389,000    
Buildings & Improvements 9,466,000    
Improvements 0    
Total Cost      
Land 4,389,000    
Buildings & Improvements 10,146,000    
Total 14,535,000    
Accumulated Depreciation 1,738,000    
Total cost of real estate net of accumulated depreciation 12,797,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Sterling, VA [Member]
      
Initial Cost      
Land 8,426,000    
Buildings & Improvements 18,651,000    
Improvements 0    
Total Cost      
Land 8,426,000    
Buildings & Improvements 18,672,000    
Total 27,098,000    
Accumulated Depreciation 2,924,000    
Total cost of real estate net of accumulated depreciation 24,174,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Windsor Court, CT [Member]
      
Initial Cost      
Land 6,090,000    
Buildings & Improvements 11,745,000    
Improvements 0    
Total Cost      
Land 6,090,000    
Buildings & Improvements 11,749,000    
Total 17,839,000    
Accumulated Depreciation 1,848,000    
Total cost of real estate net of accumulated depreciation 15,991,000    
Encumbrances 7,232,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Valrico, FL [Member]
      
Initial Cost      
Land 3,282,000    
Buildings & Improvements 12,190,000    
Improvements 0    
Total Cost      
Land 3,282,000    
Buildings & Improvements 12,313,000    
Total 15,595,000    
Accumulated Depreciation 1,896,000    
Total cost of real estate net of accumulated depreciation 13,699,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Norcross, GA [Member]
      
Initial Cost      
Land 3,007,000    
Buildings & Improvements 8,489,000    
Improvements 0    
Total Cost      
Land 3,007,000    
Buildings & Improvements 8,500,000    
Total 11,507,000    
Accumulated Depreciation 1,331,000    
Total cost of real estate net of accumulated depreciation 10,176,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Bowie, MD [Member]
      
Initial Cost      
Land 5,739,000    
Buildings & Improvements 14,301,000    
Improvements 0    
Total Cost      
Land 5,744,000    
Buildings & Improvements 14,369,000    
Total 20,113,000    
Accumulated Depreciation 2,297,000    
Total cost of real estate net of accumulated depreciation 17,816,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Ashville, NC [Member]
      
Initial Cost      
Land 2,651,000    
Buildings & Improvements 8,908,000    
Improvements 0    
Total Cost      
Land 2,651,000    
Buildings & Improvements 9,032,000    
Total 11,683,000    
Accumulated Depreciation 1,579,000    
Total cost of real estate net of accumulated depreciation 10,104,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Charlotte, NC [Member]
      
Initial Cost      
Land 2,842,000    
Buildings & Improvements 9,807,000    
Improvements 0    
Total Cost      
Land 2,842,000    
Buildings & Improvements 9,850,000    
Total 12,692,000    
Accumulated Depreciation 1,573,000    
Total cost of real estate net of accumulated depreciation 11,119,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Cornelius, NC [Member]
      
Initial Cost      
Land 4,382,000    
Buildings & Improvements 15,184,000    
Improvements 0    
Total Cost      
Land 4,382,000    
Buildings & Improvements 18,269,000    
Total 22,651,000    
Accumulated Depreciation 3,161,000    
Total cost of real estate net of accumulated depreciation 19,490,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Raleigh, NC [Member]
      
Initial Cost      
Land 2,728,000    
Buildings & Improvements 10,665,000    
Improvements 0    
Total Cost      
Land 2,728,000    
Buildings & Improvements 10,816,000    
Total 13,544,000    
Accumulated Depreciation 1,698,000    
Total cost of real estate net of accumulated depreciation 11,846,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Wilson, NC [Member]
      
Initial Cost      
Land 1,598,000    
Buildings & Improvements 8,160,000    
Improvements 0    
Total Cost      
Land 1,635,000    
Buildings & Improvements 8,384,000    
Total 10,019,000    
Accumulated Depreciation 1,363,000    
Total cost of real estate net of accumulated depreciation 8,656,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Morgantown, WV [Member]
      
Initial Cost      
Land 4,645,000    
Buildings & Improvements 10,341,000    
Improvements 0    
Total Cost      
Land 4,645,000    
Buildings & Improvements 10,346,000    
Total 14,991,000    
Accumulated Depreciation 1,761,000    
Total cost of real estate net of accumulated depreciation 13,230,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Edgewater, NJ [Member]
      
Initial Cost      
Land 7,714,000    
Buildings & Improvements 30,473,000    
Improvements 0    
Total Cost      
Land 7,714,000    
Buildings & Improvements 30,777,000    
Total 38,491,000    
Accumulated Depreciation 4,780,000    
Total cost of real estate net of accumulated depreciation 33,711,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Highland Ranch, CO [Member]
      
Initial Cost      
Land 1,380,000    
Buildings & Improvements 4,682,000    
Improvements 0    
Total Cost      
Land 1,380,000    
Buildings & Improvements 4,682,000    
Total 6,062,000    
Accumulated Depreciation 719,000    
Total cost of real estate net of accumulated depreciation 5,343,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Dania Beach, FL [Member]
      
Initial Cost      
Land 9,593,000    
Buildings & Improvements 17,686,000    
Improvements 0    
Total Cost      
Land 9,593,000    
Buildings & Improvements 17,688,000    
Total 27,281,000    
Accumulated Depreciation 2,831,000    
Total cost of real estate net of accumulated depreciation 24,450,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Plantation, FL [Member]
      
Initial Cost      
Land 1,032,000    
Buildings & Improvements 580,000    
Improvements 0    
Total Cost      
Land 1,032,000    
Buildings & Improvements 580,000    
Total 1,612,000    
Accumulated Depreciation 92,000    
Total cost of real estate net of accumulated depreciation 1,520,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Plantation, FL [Member]
      
Initial Cost      
Land 20,697,000    
Buildings & Improvements 36,751,000    
Improvements 0    
Total Cost      
Land 21,080,000    
Buildings & Improvements 79,877,000    
Total 100,957,000    
Accumulated Depreciation 11,003,000    
Total cost of real estate net of accumulated depreciation 89,954,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Duluth, GA [Member]
      
Initial Cost      
Land 815,000    
Buildings & Improvements 2,692,000    
Improvements 0    
Total Cost      
Land 815,000    
Buildings & Improvements 2,812,000    
Total 3,627,000    
Accumulated Depreciation 509,000    
Total cost of real estate net of accumulated depreciation 3,118,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Sylvania, GA [Member]
      
Initial Cost      
Land 431,000    
Buildings & Improvements 3,774,000    
Improvements 0    
Total Cost      
Land 431,000    
Buildings & Improvements 3,774,000    
Total 4,205,000    
Accumulated Depreciation 619,000    
Total cost of real estate net of accumulated depreciation 3,586,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Worcester, MA [Member]
      
Initial Cost      
Land 5,395,000    
Buildings & Improvements 10,938,000    
Improvements 0    
Total Cost      
Land 5,395,000    
Buildings & Improvements 10,938,000    
Total 16,333,000    
Accumulated Depreciation 1,727,000    
Total cost of real estate net of accumulated depreciation 14,606,000    
Encumbrances 5,365,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Dearborn Heights, MI [Member]
      
Initial Cost      
Land 2,463,000    
Buildings & Improvements 2,946,000    
Improvements 0    
Total Cost      
Land 2,463,000    
Buildings & Improvements 2,946,000    
Total 5,409,000    
Accumulated Depreciation 469,000    
Total cost of real estate net of accumulated depreciation 4,940,000    
Encumbrances 3,550,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Livonia, MI [Member]
      
Initial Cost      
Land 1,396,000    
Buildings & Improvements 2,680,000    
Improvements 0    
Total Cost      
Land 1,396,000    
Buildings & Improvements 2,680,000    
Total 4,076,000    
Accumulated Depreciation 428,000    
Total cost of real estate net of accumulated depreciation 3,648,000    
Encumbrances 2,477,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Westland, MI [Member]
      
Initial Cost      
Land 1,400,000    
Buildings & Improvements 2,531,000    
Improvements 0    
Total Cost      
Land 1,400,000    
Buildings & Improvements 2,531,000    
Total 3,931,000    
Accumulated Depreciation 407,000    
Total cost of real estate net of accumulated depreciation 3,524,000    
Encumbrances 2,625,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Cary, NC [Member]
      
Initial Cost      
Land 2,264,000    
Buildings & Improvements 4,581,000    
Improvements 0    
Total Cost      
Land 2,264,000    
Buildings & Improvements 5,675,000    
Total 7,939,000    
Accumulated Depreciation 949,000    
Total cost of real estate net of accumulated depreciation 6,990,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Concord, NC [Member]
      
Initial Cost      
Land 541,000    
Buildings & Improvements 1,430,000    
Improvements 0    
Total Cost      
Land 541,000    
Buildings & Improvements 1,430,000    
Total 1,971,000    
Accumulated Depreciation 337,000    
Total cost of real estate net of accumulated depreciation 1,634,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Winston-Salem, NC [Member]
      
Initial Cost      
Land 7,156,000    
Buildings & Improvements 15,010,000    
Improvements 0    
Total Cost      
Land 7,156,000    
Buildings & Improvements 15,010,000    
Total 22,166,000    
Accumulated Depreciation 2,450,000    
Total cost of real estate net of accumulated depreciation 19,716,000    
Encumbrances 6,613,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Dunkirk, NY [Member]
      
Initial Cost      
Land 0    
Buildings & Improvements 1,487,000    
Improvements 0    
Total Cost      
Land 0    
Buildings & Improvements 1,487,000    
Total 1,487,000    
Accumulated Depreciation 238,000    
Total cost of real estate net of accumulated depreciation 1,249,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Alliance, OH [Member]
      
Initial Cost      
Land 812,000    
Buildings & Improvements 16,244,000    
Improvements 0    
Total Cost      
Land 812,000    
Buildings & Improvements 16,244,000    
Total 17,056,000    
Accumulated Depreciation 2,638,000    
Total cost of real estate net of accumulated depreciation 14,418,000    
Encumbrances 7,137,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Cheswick, PA [Member]
      
Initial Cost      
Land 863,000    
Buildings & Improvements 2,225,000    
Improvements 0    
Total Cost      
Land 863,000    
Buildings & Improvements 2,225,000    
Total 3,088,000    
Accumulated Depreciation 352,000    
Total cost of real estate net of accumulated depreciation 2,736,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Connelsville, PA [Member]
      
Initial Cost      
Land 1,135,000    
Buildings & Improvements 2,178,000    
Improvements 0    
Total Cost      
Land 1,135,000    
Buildings & Improvements 2,178,000    
Total 3,313,000    
Accumulated Depreciation 397,000    
Total cost of real estate net of accumulated depreciation 2,916,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Monroeville, PA [Member]
      
Initial Cost      
Land 1,431,000    
Buildings & Improvements 2,006,000    
Improvements 0    
Total Cost      
Land 1,431,000    
Buildings & Improvements 2,006,000    
Total 3,437,000    
Accumulated Depreciation 308,000    
Total cost of real estate net of accumulated depreciation 3,129,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
New Castle, PA [Member]
      
Initial Cost      
Land 1,331,000    
Buildings & Improvements 2,016,000    
Improvements 0    
Total Cost      
Land 1,331,000    
Buildings & Improvements 2,016,000    
Total 3,347,000    
Accumulated Depreciation 319,000    
Total cost of real estate net of accumulated depreciation 3,028,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Pittsburgh, PA [Member]
      
Initial Cost      
Land 1,771,000    
Buildings & Improvements 2,523,000    
Improvements 0    
Total Cost      
Land 1,771,000    
Buildings & Improvements 2,523,000    
Total 4,294,000    
Accumulated Depreciation 396,000    
Total cost of real estate net of accumulated depreciation 3,898,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Gaffney, SC [Member]
      
Initial Cost      
Land 1,189,000    
Buildings & Improvements 2,363,000    
Improvements 0    
Total Cost      
Land 1,189,000    
Buildings & Improvements 2,363,000    
Total 3,552,000    
Accumulated Depreciation 378,000    
Total cost of real estate net of accumulated depreciation 3,174,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Greenville, SC [Member]
      
Initial Cost      
Land 1,452,000    
Buildings & Improvements 1,891,000    
Improvements 0    
Total Cost      
Land 1,452,000    
Buildings & Improvements 1,891,000    
Total 3,343,000    
Accumulated Depreciation 290,000    
Total cost of real estate net of accumulated depreciation 3,053,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Greenville, SC [Member]
      
Initial Cost      
Land 5,659,000    
Buildings & Improvements 14,411,000    
Improvements 0    
Total Cost      
Land 5,659,000    
Buildings & Improvements 14,411,000    
Total 20,070,000    
Accumulated Depreciation 2,360,000    
Total cost of real estate net of accumulated depreciation 17,710,000    
Encumbrances 6,340,000    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Piedmont, SC [Member]
      
Initial Cost      
Land 589,000    
Buildings & Improvements 1,687,000    
Improvements 0    
Total Cost      
Land 589,000    
Buildings & Improvements 1,687,000    
Total 2,276,000    
Accumulated Depreciation 269,000    
Total cost of real estate net of accumulated depreciation 2,007,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Woodruff, SC [Member]
      
Initial Cost      
Land 1,145,000    
Buildings & Improvements 2,353,000    
Improvements 0    
Total Cost      
Land 1,145,000    
Buildings & Improvements 2,353,000    
Total 3,498,000    
Accumulated Depreciation 376,000    
Total cost of real estate net of accumulated depreciation 3,122,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Ft. Worth, TX [Member]
      
Initial Cost      
Land 860,000    
Buildings & Improvements 1,913,000    
Improvements 0    
Total Cost      
Land 860,000    
Buildings & Improvements 1,913,000    
Total 2,773,000    
Accumulated Depreciation 301,000    
Total cost of real estate net of accumulated depreciation 2,472,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Grand Prairie, TX [Member]
      
Initial Cost      
Land 2,892,000    
Buildings & Improvements 3,226,000    
Improvements 0    
Total Cost      
Land 2,892,000    
Buildings & Improvements 3,226,000    
Total 6,118,000    
Accumulated Depreciation 541,000    
Total cost of real estate net of accumulated depreciation 5,577,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Houston, TX [Member]
      
Initial Cost      
Land 4,380,000    
Buildings & Improvements 8,729,000    
Improvements 0    
Total Cost      
Land 4,380,000    
Buildings & Improvements 8,775,000    
Total 13,155,000    
Accumulated Depreciation 1,435,000    
Total cost of real estate net of accumulated depreciation 11,720,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Olympia, WA [Member]
      
Initial Cost      
Land 2,946,000    
Buildings & Improvements 3,050,000    
Improvements 0    
Total Cost      
Land 2,946,000    
Buildings & Improvements 3,050,000    
Total 5,996,000    
Accumulated Depreciation 468,000    
Total cost of real estate net of accumulated depreciation 5,528,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Weirton, WV [Member]
      
Initial Cost      
Land 694,000    
Buildings & Improvements 2,109,000    
Improvements 0    
Total Cost      
Land 694,000    
Buildings & Improvements 2,109,000    
Total 2,803,000    
Accumulated Depreciation 334,000    
Total cost of real estate net of accumulated depreciation 2,469,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Evansville, IN [Member]
      
Initial Cost      
Land 8,964,000    
Buildings & Improvements 18,764,000    
Improvements 0    
Total Cost      
Land 8,964,000    
Buildings & Improvements 18,895,000    
Total 27,859,000    
Accumulated Depreciation 3,113,000    
Total cost of real estate net of accumulated depreciation 24,746,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Apex, NC [Member]
      
Initial Cost      
Land 2,362,000    
Buildings & Improvements 4,452,000    
Improvements 0    
Total Cost      
Land 2,362,000    
Buildings & Improvements 4,452,000    
Total 6,814,000    
Accumulated Depreciation 358,000    
Total cost of real estate net of accumulated depreciation 6,456,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Date of Construction (C) Acquisition (A) 2007 (A)    
Unencumbered [Member]
      
Initial Cost      
Land 306,979,000    
Buildings & Improvements 204,664,000    
Improvements 0    
Total Cost      
Land 306,979,000    
Buildings & Improvements 204,664,000    
Total 511,643,000    
Accumulated Depreciation 2,124,000    
Total cost of real estate net of accumulated depreciation 509,519,000    
Encumbrances 0    
Depreciable Lives (Years)(1) 31.5    
Encumbered [Member]
      
Initial Cost      
Land 64,821,000    
Buildings & Improvements 173,362,000    
Improvements 0    
Total Cost      
Land 64,821,000    
Buildings & Improvements 173,362,000    
Total 238,183,000    
Accumulated Depreciation 51,539,000    
Total cost of real estate net of accumulated depreciation 186,644,000    
Encumbrances $ 48,559,000    
Depreciable Lives (Years)(1) 31.5